Library Symbols

This repository will be used to store the library symbols from Apple's operating systems.

Requirements

This tool was designed to run on macOS only. Windows and Linux are not supported.

The tool relies on the following applications being installed.

• nm
• otool
• dyld-shared-cache-extractor (install guide)

Building

You will need the Rust development toolkit before you are able to compile the program.

cargo build

After a successful build, the program will live in target/debug/library_symbols.

How To Use The Program

library_symbols [--base_path path_to_os_files] results_folder

Arguments

• results_folder: Where the symbols information (nm, otool, etc.) will be stored.
• --base_path [Optional]: Specify the root filesystem the application should grab the symbols from. If no argument is provided, the path / will be used. This is useful for getting symbols from an iPSW file or from an external macOS install.

Examples

Extracting iPadOS symbols from iPad_Spring_2021_15.5_19F77_Restore.ipsw (don't forget to decompress the .ipsw and mount the 078-12432-106.dmg image first).

library_symbols --base_path '/Volumes/SkyF19F77.J407J408OS' '/Users/user/Desktop/symbols'

Extracting symbols from current machine (macOS).

library_symbols '/Users/user/Desktop/symbols'